One-step synthesis and electrochemical performance of a PbMoO4/CdMoO4 composite as an electrode material for high-performance supercapacitor applications

2019 ◽  
Vol 48 (28) ◽  
pp. 10652-10660 ◽  
Author(s):  
Tarugu Anitha ◽  
Araveeti Eswar Reddy ◽  
Yedluri Anil Kumar ◽  
Young-Rae Cho ◽  
Hee-Je Kim
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Electrode Material ◽  
High Performance ◽  
Cycling Stability ◽  
One Step ◽  
Supercapacitor Applications

A bunch of PbMoO4/CdMoO4 nanocube-like structures exhibit superior specific capacitance and cycling stability to PbMoO4 and CdMoO4 electrodes.

scholarly journals Correction: One-step synthesis and electrochemical performance of a PbMoO4/CdMoO4 composite as an electrode material for high-performance supercapacitor applications

2020 ◽  
Vol 49 (3) ◽  
pp. 941-941
Author(s):  
Tarugu Anitha ◽  
Araveeti Eswar Reddy ◽  
Yedluri Anil Kumar ◽  
Young-Rae Cho ◽  
Hee-Je Kim
Keyword(s):  
Electrochemical Performance ◽  
Electrode Material ◽  
High Performance ◽  
Dalton Trans ◽  
One Step ◽  
Supercapacitor Applications

Correction for ‘One-step synthesis and electrochemical performance of a PbMoO4/CdMoO4 composite as an electrode material for high-performance supercapacitor applications’ by Tarugu Anitha et al., Dalton Trans., 2019, 48, 10652–10660.

scholarly journals Fabrication of Hierarchical NiMoO4/NiMoO4 Nanoflowers on Highly Conductive Flexible Nickel Foam Substrate as a Capacitive Electrode Material for Supercapacitors with Enhanced Electrochemical Performance

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1143 ◽  
Author(s):  
Anil Yedluri ◽  
Tarugu Anitha ◽  
Hee-Je Kim
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Electrode Material ◽  
High Performance ◽  
Nickel Foam ◽  
High Specific Capacitance ◽  
High Energy ◽  
High Energy Density ◽  
Charge Discharge

Hierarchical NiMoO4/NiMoO4 nanoflowers were fabricated on highly conductive flexible nickel foam (NF) substrates using a facile hydrothermal method to achieve rapid charge-discharge ability, high energy density, long cycling lifespan, and higher flexibility for high-performance supercapacitor electrode materials. The synthesized composite electrode material, NF/NiMoO4/NiMoO4 with a nanoball-like NF/NiMoO4 structure on a NiMoO4 surface over a NF substrate, formed a three-dimensional interconnected porous network for high-performance electrodes. The novel NF/NiMoO4/NiMoO4 nanoflowers not only enhanced the large surface area and increased the electrochemical activity, but also provided an enhanced rapid ion diffusion path and reduced the charge transfer resistance of the entire electrode effectively. The NF/NiMoO4/NiMoO4 composite exhibited significantly improved supercapacitor performance in terms of a sustained cycling life, high specific capacitance, rapid charge-discharge capability, high energy density, and good rate capability. Electrochemical analysis of the NF/NiMoO4/NiMoO4 nanoflowers fabricated on the NF substrate revealed ultra-high electrochemical performance with a high specific capacitance of 2121 F g−1 at 12 mA g−1 in a 3 M KOH electrolyte and 98.7% capacitance retention after 3000 cycles at 14 mA g−1. This performance was superior to the NF/NiMoO4 nanoball electrode (1672 F g−1 at 12 mA g−1 and capacitance retention 93.4% cycles). Most importantly, the SC (NF/NiMoO4/NiMoO4) device displayed a maximum energy density of 47.13 W h kg−1, which was significantly higher than that of NF/NiMoO4 (37.1 W h kg−1). Overall, the NF/NiMoO4/NiMoO4 composite is a suitable material for supercapacitor applications.

Hierarchical porous NiCo2O4 nanograss arrays grown on Ni foam as electrode material for high-performance supercapacitors

RSC Advances ◽  
2014 ◽  
Vol 4 (39) ◽  
pp. 20234-20238 ◽  
Author(s):  
Zhenyu Wang ◽  
Yuefei Zhang ◽  
Yonghe Li ◽  
Haoyu Fu
Keyword(s):  
Electrochemical Performance ◽  
Hydrothermal Method ◽  
Electrode Material ◽  
High Performance ◽  
Ni Foam ◽  
Hierarchical Porous ◽  
One Step ◽  
Calcination Treatment

A novel hierarchical porous NiCo2O4 nanograss array directly grown on Ni foam has been constructed via a simple one-step hydrothermal method combined with a calcination treatment, and possessed high electrochemical performance.

scholarly journals One-Step Hydrothermal Synthesis of a CoTe@rGO Electrode Material for Supercapacitors

2021 ◽  
Author(s):  
Tianrui Wang ◽  
Yupeng Su ◽  
Mi Xiao ◽  
Meilian Zhao ◽  
Tingwu Zhao ◽  
...  
Keyword(s):  
Energy Density ◽  
Specific Capacitance ◽  
Power Density ◽  
Current Density ◽  
Electrode Material ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
One Step ◽  
Charge Discharge

AbstractCoTe@reduced graphene oxide (CoTe@rGO) electrode materials for supercapacitors were prepared by a one-step hydrothermal method in this paper. Compared with that of pure CoTe, the electrochemical performance of CoTe@rGO was significantly improved. The results showed that the optimal CoTe@rGO electrode material has a remarkably high specific capacitance of 810.6 F/g at a current density of 1 A/g. At 5 A/g, the synthesized material retained 77.2% of its initial capacitance even after 5000 charge/discharge cycles, thereby demonstrating good cycling stability. Moreover, even at a high current density of 20 A/g, the composite electrode retained 79.0% of its specific capacitance at 1 A/g, thus confirming its excellent rate performance. An asymmetric supercapacitor (ASC) with a wider potential window and higher energy density was assembled by using 3 M KOH as the electrolyte, the CoTe@rGO electrode as the positive electrode, and active carbon as the negative electrode. The operating voltage of the supercapacitor could be increased to 1.6 V, and its specific capacitance could reach 112.6 F/g at 1 A/g. The specific capacitance retention rate of the fabricated supercapacitor after 5000 charge/discharge cycles at 5 A/g was 87.1%, which confirms its excellent cycling stability. In addition, the ASC revealed a high energy density of 40.04 W·h/kg at a power density of 799.91 W/kg and a high power density of 4004.93 W/kg at an energy density of 33.43 W·h/kg. These results collectively show that CoTe@rGO materials have broad application prospects.

scholarly journals Preparation of a MoS2/carbon nanotube composite as an electrode material for high-performance supercapacitors

RSC Advances ◽  
2018 ◽  
Vol 8 (52) ◽  
pp. 29488-29494 ◽  
Author(s):  
Xiaobo Chen ◽  
Jingguo Ding ◽  
Jing Jiang ◽  
Guoce Zhuang ◽  
Zhihai Zhang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electrochemical Performance ◽  
Electrode Material ◽  
High Performance ◽  
Carbon Supports ◽  
Carbon Nanotube Composite ◽  
Supercapacitor Applications

The effect of carbon supports on the electrochemical performance of MoS2 nanosheets for supercapacitor applications was investigated.

One-Step Hydrothermal Preparation of 1D α-MoO3 Nanobelt Electrode Material for Supercapacitor

NANO ◽  
2019 ◽  
Vol 14 (07) ◽  
pp. 1950085 ◽  
Author(s):  
Puhong Wen ◽  
Jingjing Guo ◽  
Lijun Ren ◽  
Chuanchuan Wang ◽  
Yuzhu Lan ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Current Density ◽  
Electrode Material ◽  
High Specific Capacitance ◽  
Raw Material ◽  
Hydrothermal Preparation ◽  
Ammonium Heptamolybdate ◽  
One Step ◽  
A Current

1D [Formula: see text]-MoO3 nanobelts were prepared using ammonium heptamolybdate tetrahydrate [(NH[Formula: see text]Mo7O[Formula: see text]H2O] as raw material by one-step hydrothermal method without template or guide agent at 180∘C. The layered [Formula: see text]-MoO3 nanobelt electrode has favorable electrochemical performance, and displays a fairly high specific capacitance, which can be up to 445[Formula: see text]F/g at a current density of 0.5[Formula: see text]A/g.

scholarly journals Facile synthesis of a α-MoO3 nanoplate/TiO2 nanotube composite for high electrochemical performance

RSC Advances ◽  
2017 ◽  
Vol 7 (37) ◽  
pp. 22983-22989 ◽  
Author(s):  
Shupei Sun ◽  
Xiaoming Liao ◽  
Yu Sun ◽  
Guangfu Yin ◽  
Yadong Yao ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Electrode Material ◽  
High Performance ◽  
Composite Electrode ◽  
Tio2 Nanotube ◽  
Electrodeposition Technique ◽  
Facile Synthesis ◽  
Supercapacitor Applications

A novel α-MoO3/TiO2 composite electrode material for high performance supercapacitor applications was synthesized using a facile electrodeposition technique.

scholarly journals Advanced binder-free electrodes based on CoMn2O4@Co3O4 core/shell nanostructures for high-performance supercapacitors

RSC Advances ◽  
2018 ◽  
Vol 8 (55) ◽  
pp. 31594-31602 ◽  
Author(s):  
Xiaobo Chen ◽  
Xiao Liu ◽  
Yongxu Liu ◽  
Yameng Zhu ◽  
Guoce Zhuang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
High Performance ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Core Shell ◽  
Ni Foam ◽  
Asymmetric Supercapacitors ◽  
Shell Nanostructures ◽  
Binder Free

CoMn2O4@Co3O4 core/shell arrays on Ni foam exhibit outstanding electrochemical performance for asymmetric supercapacitors with respect to high specific capacitance and high cycling stability.

Facile one-step synthesis of a composite CuO/Co3O4 electrode material on Ni foam for flexible supercapacitor applications

2017 ◽  
Vol 41 (13) ◽  
pp. 5493-5497 ◽  
Author(s):  
Hee-Je Kim ◽  
Sang Yong Kim ◽  
Lun Jae Lim ◽  
Araveeti Eswar Reddy ◽  
Chandu V. V. Muralee Gopi
Keyword(s):  
Hydrothermal Synthesis ◽  
Specific Capacitance ◽  
Electrode Material ◽  
Composite Electrode ◽  
Cyclic Stability ◽  
Ni Foam ◽  
Flexible Supercapacitor ◽  
One Step ◽  
Supercapacitor Applications

CuO/Co3O4 nanospheres were grown on Ni foam via a simple, one-step hydrothermal synthesis. The resultant CuO/Co3O4 composite electrode exhibits superior specific capacitance and cyclic stability compared to the Co3O4 electrode.

Hydrothermal synthesis of MoS2 and WS2 nanoparticles for high-performance supercapacitor applications

2018 ◽  
Vol 42 (15) ◽  
pp. 12357-12360 ◽  
Author(s):  
Chandu Nagaraju ◽  
Chandu V. V. Muralee Gopi ◽  
Jin-Woo Ahn ◽  
Hee-Je Kim
Keyword(s):  
Hydrothermal Synthesis ◽  
Specific Capacitance ◽  
High Performance ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Good Cycling Stability ◽  
Supercapacitor Applications

As-fabricated nanoparticle structured MoS2 and WS2 electrodes delivered high specific capacitance, excellent rate capability and good cycling stability.

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